3.3V Xbee Adapter Pins

Xbee projects like the adapter, xbee tutorials, tweetawatt/wattcher, etc. purchased at Adafruit

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3.3V Xbee Adapter Pins

Postby seancron » Sat Aug 04, 2012 10:22 pm

I have an Adafruit Xbee adapter that I'm trying to use to update a 3.3V LCD from my computer.

I'm planning on powering the Xbee and LCD with 4 NiMH AA batteries. I was just about to wire up a circuit to regulate the battery voltage, when I noticed the 3V pins on the Xbee adapter.

Can I use those pins (#1 and #10) to power my 3.3V LCD, if I connect the battery pack directly to the 5V and ground pins on the Xbee adapter? Or should I still make a circuit to regulate the voltage for both?
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Re: 3.3V Xbee Adapter Pins

Postby adafruit_support_bill » Sun Aug 05, 2012 5:01 am

The schematic is here: http://www.ladyada.net/images/xbee/xbee11sch.png
The 5v pins are fed to a 3.3v regulator which powers the level shifter and is also available on pins 1 & 10.
You should be fine powering it with the 4.8v from your NiMH cells.
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